![]() ![]() Gregory estudió el ácido úrico y la preparación y propiedades de varios de sus derivados, entre ellos, aloxano, aloxantina, dialurato de amonio, ácido dialúrico acid, tionurato ácido de amonio, y el ácido aloxánico. Ensayos terapéuticos demostraron que el hidrocloruro de morfina de Gregory era más eficiente y económico que los calmantes de aquella época. Este método era más rápido, tenía un rendimiento muy alto, y evitaba el uso de alcohol, un reactivo muy caro. ![]() Su contribución más importante fue el desarrollo de un nuevo método para separar la morfina del opio, basado en la extracción con agua, precipitación con amoníaco, y tratamiento con HCl. William Gregory (1803-1858), médico inglés convertido en químico, llevó a cabo una amplia investigación en temas de química inorgánica, orgánica, y bioquímica. Keywords: chloroform hippuric acid iodides morphine sugar uric acid He also proved that lead sulfite, used for extracting sugar cane, was not toxic to humans, and developed an efficient modification of Baup's procedure for preparing potassium iodide. Gregory developed also a very efficient process for preparing glycocoll, for purifying chloroform and making it a safer anesthesia, based on washing it with sulfuric acid. Gregory studied uric acid and the preparation and properties of several of its derivatives, among them alloxan, alloxantin, ammonium dialurate, dialuric acid, ammonia acid thionurate, and alloxanic acid. Therapeutic tests showed that Gregory's morphine hydrochloride was more efficient and economical than the painkillers used at that time. This method was faster, had a very high yield, and avoided the use of alcohol, an expensive reagent. His most important contribution was the development of a new method for separating morphine from opium, based on extraction with water, precipitation with ammonia, and treatment with HCl. William Gregory (1803-1858), an English physician turned chemist, carried extensive research on a wide variety of subjects in inorganic, organic, and biochemistry. ![]()
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